op-amp integrator with reset

Discussion in 'Homework Help' started by ivkil, May 24, 2013.

  1. ivkil

    Thread Starter New Member

    Nov 23, 2012
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    0
    Hello! I'm new in electronics. I have a sine wave on the input and my task is to obtain the triangle wave with spikes on the output (see pic.)[​IMG]

    I try to solve this problem. Firstly, I obtain a square wave with the help of op-amp, then integrate it with the help of op-amp integrator with reset on FET. But switch does not work. I have triangle wave on the output (without exponential function).
    This is scheme. Maybe there is some mistakes (I rewrite it from the book).
    [​IMG]
    Thanks. Please help!
     
    Last edited: May 24, 2013
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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    I included (among other components) R3 & R5 to obtain the desired output.

    Some other mods were required to obtain the correct waveform phase relationships.

    The solution isn't ideal but it's a start.
     
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  3. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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    FYI - The waveforms for input & output are as attached.
     
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  4. ivkil

    Thread Starter New Member

    Nov 23, 2012
    2
    0
    Thank you. Can you give me your circuit parameters? (maybe attach your program simulation file)
     
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